Mayu Iwai
| ITF Women Nishi-Tama | 03/18 01:00 | 62 | Mayu Iwai v Chisa Hosonuma | 6-7,2-6 | |
| ITF Women Nishi-Tama | 03/17 03:00 | 62 | Kanako Osafune v Mayu Iwai | 3-6,5-7 | |
| ITF Women Toyota Qual | 03/12 03:05 | 62 | Mayu Iwai v Rika Fujiwara | 3-6,4-6 | |
| ITF Women Toyota Qual | 03/11 03:30 | 62 | Riko Sawayanagi v Mayu Iwai | 6-0,1-6,2-6 | |
| ITF Women Toyota Qual | 03/10 03:00 | 62 | Saki Imamura v Mayu Iwai | 5-7,3-6 | |
| ITF Women Kofu Qual | 06/11 04:00 | 62 | Mayu Iwai v Aoi Ishino | 6-0,6-7,4-6 | |
| ITF Women Nishi-Tama | 03/19 01:00 | 62 | Yuki Kristina Chiang v Mayu Iwai | 6-2,6-2 | |
| ITF Women Nishi-Tama | 03/18 01:00 | 62 | Mayu Iwai v Mihoki Miyahara | Retired | |
| Challenger Kaohsiung Qual | 06/14 03:00 | 54 |
Ayano Shimizu
v
Mayu Iwai |
6-3,6-3 |
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